“Homespun” cotton shirts are the most overrepresented item in the hobby!  Every U.S. Army soldier was provided with wool shirts by the government, and you need one for your impression.  Made by the Honest Sutler, these will be made from wool flannel and will match an original shirt worn by a soldier in the Army of the Potomac.

Sizes: Regular (up to size 42), Large (up to size 48)

U.S. Issue Shirt, Wool Flannel - Petersburg